A teeth whitening procedure or bleaching simply refers to any process that will make the teeth appear whiter. It is considered a non-invasive procedure that is designed to whiten and brighten teeth that are stained, discolored, darkened, or yellowed. First introduced to the public in the 1980’s, the popularity of teeth whitening products and procedures has soared. According to a survey conducted by the American Academy of Cosmetic Dentistry, when respondents were asked, “What would you like to improve most about your smile?” The most common response was: whiter and brighter teeth.
How white a tooth appears depends upon how light is reflected and scattered off the enamel, the outermost layer of the tooth. Teeth can look dark or discolored for a variety of reasons, with an imperfect appearance the result of outer surface stains or discoloration from within the tooth. While external tooth stains are typically due to certain foods and tobacco, internal tooth discoloration is mainly the result of hereditary factors, certain medications, tooth decay, restorations, or trauma. Additionally, the aging process can influence the color of a tooth. This is because over time the outer layer of enamel becomes thinner showing more yellowish tones from the underlying layer of dentin.
What are the advantages of a professional teeth whitening procedure performed by a dentist?
Although over the counter teeth whitening systems purchased in stores or online have become popular, there are health concerns and limitations with these products. If the manufacturers protocol is not correctly followed, certain products can damage the teeth and soft tissues in the mouth, and may not deliver the results as promised. Teeth whitening systems contain varying concentration of either hydrogen peroxide or carbamide peroxide, which act as the bleaching agents. When sensitive teeth, exposed roots, cavities, broken fillings, cracked teeth, or loose dental work are present, a teeth whitening procedure may be contraindicated. Also, since whitening systems do not have an effect on the color of dental fillings, crowns or bridges the presence of restorations is an important cosmetic consideration in treatment planning.
In general, individuals with yellow tones to their teeth respond best to teeth whitening procedures. Brown and grayish tinted teeth bleach respond less well and may require significantly longer dentist supervised tooth whitening regimens or alternative cosmetic treatments. Finally, teeth whitening may not be recommended in the presence of sensitive teeth, worn enamel and significant gum disease.
As a rule the healthiest and most effective methods of teeth whitening are the ones managed and supervised by the dentist. An in-office teeth whitening procedure as performed by the dentist is the most reliable and safest way to get the maximum results quickly. In as little as one hour a prescription-strength, in-office whitening procedure can dramatically whiten and brighten the natural teeth by several shades, while the surrounding tissues and any sensitive areas of the teeth are carefully isolated and protected from the bleaching agents.
A home whitening system from the dentist along with custom trays that have been fitted to the teeth is also an excellent option. Custom trays keep the bleaching agent in maximum contact with the teeth and away from the other areas of the mouth. With a take-home teeth whitening system, maximum results are less rapid than an in office procedure and are typically achieved over a longer period of time. A home whitening system can be used by itself or as recommended by the dentist as a follow up to an in office procedure in order to perfect or maintain the results.
While an overwhelming selection of over-the-counter teeth whitening products is readily available for purchase at stores or online, it's imperative to keep in mind that the healthiest and most effective methods of care are those professionally supervised by your dentist. With a teeth whitening procedure provided by our office, we can safely, comfortably, and effectively transform your smile by up to several shades in a short amount of time.
Teeth whitening offers a simple and non-invasive way to whiten and brighten your smile. Whitening products contain various strengths of biologically safe hydrogen peroxide or carbamide peroxide that act as bleaching agents on stained or discolored dental enamel. By breaking the stains into smaller pieces, these bleaching agents make the color less concentrated and your teeth brighter.
Every patient is different, and despite the fact that many people experience no sensitivity or pain with a professional teeth whitening, there are some that do. Although considered a minimally invasive cosmetic procedure, some temporary discomfort during and following the procedure may ensue. It helps to stick to room temperature beverages for a few days following a teeth whitening. You can also take over-the-counter pain medication as you would for a headache. If you have a history of sensitive teeth, we may select a gentler formulation of whitening products or an alternative procedure.
It's essential to keep in mind that every patient has unique needs and specific requirements of care. In general, individuals with yellow tones to their teeth respond best to teeth whitening. Brown and grayish tinted teeth respond less well to bleach and may require significantly longer dentist-supervised tooth whitening regimens or alternative cosmetic treatments. Finally, teeth whitening may not be recommended in the presence of sensitive teeth, worn enamel, and significant gum disease.
For darkly stained teeth, a whitening procedure may not provide the cosmetic results desired. In these cases, we'll talk about alternative options such as porcelain veneers or full-coverage crowns.
Teeth whitening only works on natural teeth. The fact that whiteners do not affect the color of existing dental fillings, veneers, bonding, crowns, or bridges on the front teeth remains an important consideration when choosing the best cosmetic option in care.
As a rule, the healthiest and most effective methods of teeth whitening are the ones managed and supervised by your dentist. You can count on our office to provide the most effective, safest, and satisfying professional-strength options to whiten, brighten, and lighten your smile! Stay away from over-the-counter products, which may be overly abrasive or put the health of your teeth and the surrounding soft tissues at risk. While these products may work when healthy teeth and gums are present, they're often ineffective or problematic when sensitive teeth, exposed roots, cavities, broken fillings, cracked teeth, or loose dental work are the case.
How long your teeth whitening lasts depends on your lifestyle. Your eating, drinking, and smoking habits can have a significant impact on maintaining your result. Of course, the best way to ensure that your smile stays healthy and beautiful is a good daily oral healthcare regimen, along with regular dental checkups and cleanings.
It's essential to keep in mind that as a cosmetic dental procedure, a teeth whitening may not be covered by your insurance plan. We understand the financial considerations involved in care and do our best to help you get the treatment you need without any additional stress or delay. We offer several payment options and financing plans to make things easier.
At the office of Mercer Island Dental Associates, we want every patient to enjoy the benefits of a smile that is as beautiful as it is healthy. In addition to offering a comprehensive range of advanced services to keep your smile in tip-top health, we also provide leading-edge cosmetic solutions to transform less-than-perfect-looking teeth into ones that dazzle.
Tooth discoloration arises from extrinsic and intrinsic factors that change the way enamel and dentin reflect light. Extrinsic stains affect the outer enamel and commonly result from dark foods, beverages, tobacco use or surface buildup. Intrinsic discoloration stems from internal changes such as genetics, certain medications taken during tooth development, trauma or age-related thinning of enamel.
As enamel wears or thins, the naturally warmer color of dentin becomes more visible and teeth can appear more yellow. Identifying whether staining is extrinsic or intrinsic helps the dental team choose the most effective approach. A clinical assessment is the first step in setting realistic expectations for whitening outcomes.
Professional whitening uses higher-concentration peroxide formulations and dental oversight to control application, contact time and soft-tissue protection. In-office systems can deliver faster, more noticeable shade changes while dentist-prescribed take-home trays use professional gel with custom appliances for gradual, repeatable results. Over-the-counter options typically contain lower concentrations and lack the personalized fit and monitoring provided by a dental professional.
Because a dentist evaluates oral health first, professional treatment reduces the chance of treating active decay, loose restorations or gum inflammation with bleaching materials in place. Clinical supervision also allows the team to manage sensitivity and ensure even, safe application. For many patients, supervised whitening improves predictability and diminishes potential complications.
An in-office whitening visit begins with an examination and shade documentation to confirm candidacy and set expectations. The dental team isolates gums and lips with protective barriers, applies the peroxide gel in measured applications and monitors progress and comfort throughout the appointment. Multiple short applications are often used to achieve the target shade while minimizing sensitivity.
Patients remain comfortable in the operatory while the dentist or hygienist oversees each step and provides immediate care if irritation or sensitivity occurs. Procedure length varies by system and the degree of staining, but most in-office treatments are completed in a single visit. The team supplies post-treatment instructions to protect the enamel while the tooth surface stabilizes.
Take-home whitening systems begin with impressions or digital scans to create custom-fitted trays that hold professional-grade gel against the tooth surface. Patients place a small amount of gel into the trays and wear them for the prescribed daily time, which allows controlled, gradual whitening with less abrupt sensitivity for many people. This approach is convenient and supports periodic touch-ups without repeating an in-office procedure.
Dentist supervision includes guidance on wear time, monitoring progress and modifying the regimen if sensitivity arises or results plateau. Proper tray fit and adherence to directions are essential to avoid gum irritation and achieve even coverage. Regular follow-up visits let the dental team assess shade stability and advise on long-term maintenance.
The most common side effects are temporary tooth sensitivity and mild gum irritation if bleaching gel contacts soft tissues. Sensitivity typically peaks shortly after treatment and resolves within a few days; desensitizing toothpaste and avoiding extreme hot or cold foods can ease discomfort. Persistent or severe symptoms should be evaluated by a dental professional to rule out untreated decay or other underlying conditions.
Active gum disease, untreated cavities and thin enamel increase the risk of adverse effects and should be addressed before bleaching. A professional assessment minimizes risk by identifying and treating these concerns first. When whitening is performed under supervision and on suitable candidates, it is generally a safe procedure, though individual responses vary.
Whitening agents act on natural tooth structure and do not alter the color of ceramics, composite restorations, crowns or veneers. If restorations are present in the visible smile, bleaching may lighten surrounding natural teeth and create a mismatch in shade. It is important to discuss the presence and location of restorations with your dentist before starting any whitening regimen.
Often the recommended plan is to whiten natural teeth first and then evaluate whether restorations should be replaced or adjusted to match the new shade. In some cases, alternative cosmetic treatments are advised instead of or in addition to bleaching to produce a uniform appearance. Coordinating whitening and restorative care helps achieve a harmonious esthetic result.
Before whitening, schedule a comprehensive exam and a professional cleaning so the dentist can treat cavities, gum inflammation or loose restorations that would affect safety and outcomes. A cleaning removes surface deposits that can interfere with even bleaching and helps the team select the appropriate whitening approach. Discussing any history of sensitivity and your esthetic goals allows the provider to tailor the plan to your needs.
At Mercer Island Dental Associates the team may recommend completing necessary restorative work before bleaching and taking impressions or digital scans for custom trays when a take-home system is chosen. You will receive clear instructions on post-treatment care and precautions, including dietary and hygiene guidance, to maximize results. Good communication between you and the dental team establishes realistic expectations and reduces the risk of complications.
Duration of whitening results varies by individual and depends on dietary choices, tobacco use and oral hygiene habits as well as the type of treatment used. Many patients enjoy noticeable brightness for months to years, but periodic touch-ups with a dentist-prescribed take-home system are commonly needed to maintain the shade. Routine professional cleanings also remove surface stains and support the longevity of results.
To prolong whitening effects, limit exposure to highly pigmented foods and beverages, avoid tobacco and maintain consistent brushing and flossing. Whitening or maintenance toothpastes and strategic, infrequent touch-ups under dental supervision can refresh shade without repeating in-office procedures. If sensitivity arises after maintenance, consult your dentist to adjust the regimen.
Whitening is not appropriate for children with developing teeth, individuals with active gum disease or untreated cavities, or patients with severe enamel defects and extensive restorations in the smile zone. Those with intrinsic discoloration from certain medications or trauma may not achieve the desired outcome with bleaching alone and might need restorative or cosmetic alternatives. A clinical exam determines candidacy and identifies any contraindications.
Pregnant or breastfeeding patients are generally advised to postpone elective whitening until after pregnancy or lactation as a precaution, and people with known peroxide allergies should avoid bleaching materials. Individuals with unrealistic expectations or complex banded staining often benefit from a restorative consult rather than bleaching alone. Shared decision making with your dental team ensures the chosen approach aligns with oral health and esthetic goals.
The evaluation begins with a comprehensive review of dental history, oral health status and the specific type and severity of staining to recommend the most suitable whitening modality. This assessment includes shade documentation, inspection of restorations and screening for sensitivity or conditions that should be treated before bleaching. The dental team explains realistic outcomes and the advantages and limitations of in-office versus take-home approaches so patients can make informed choices.
Following the assessment, the dentist may propose an in-office procedure for rapid improvement, a supervised take-home system for gradual control, or a combined plan for more complex discoloration. A maintenance and follow-up strategy is outlined to preserve results and determine when touch-ups or restoration adjustments are advisable. Personalized care ensures the selected option supports both esthetic objectives and long-term oral health.
